Problems we can help you with ...

  • Depression
  • Anxiety
  • Stress
  • Eating Disorders
  • Abuse & Trauma
  • Self Esteem
  • Adjusting to Injury and loss
  • Grief and Loss
  • What to Expect?
  • What to bring?
  • No need for nerves
  • After my first meeting

Providing Psychological Assessments & Therapy Services to the Macarthur Area

Our Team



Briallen completed a Bachelor of Arts with Honours in Psychology at The University of Sydney in 1998, and then went on to complete a Masters of Clinical Psychology at The University of New South Wales in 2000. Briallen has been working in the field of Clinical Psychology since that time.

Briallen’s psychology career has provided her with extensive experience in a range of settings. She has worked within Adult Mental Health in Australia and the United Kingdom. Briallen has also worked within the hospital system, providing psychology services to patients recovering from illness and injury. She began Private Practice in 2005 alongside her Public Health work, and in 2010 decided to work solely in Private Practice.

Whilst Briallen welcomes clients presenting with any difficulties, she has specialty areas including Depression, Anxiety, Obsessive Compulsive Disorder, Eating Disorders and addressing the impact of Childhood Sexual Abuse.

Briallen is photographed with Scout, our team’s Therapy Dog. Scout attends the practice on occasion.




Cosette completed a Masters of Clinical Psychology at The University of New South Wales in 1998. Cosette has enjoyed working within different sectors of Clinical Psychology since that time.

Cosette began her psychology career assisting clients with drug and alcohol addictions. From 2001 she worked for St John of God, providing psychological services across a broad range of difficulties. In 2004 and 2005 Cosette worked within Public Health, specifically focussing on Adult Mental Health. Cosette has been working exclusively in Private Practice since 2005.

Cosette provides psychological therapy to a broad range of difficulties. Her specialty areas include Anxiety and helping clients build Self Esteem and Resilience.





Ben is a Consultant Psychologist, working within the Public Health system as well as working privately for Reid Clinical Psychology. Ben obtained a Bachelor of Social Science Degree from The University of Western Sydney in 2001. In 2002 he completed a Bachelor of Arts with Honours in Psychology at Newcastle University.

Since 2004, Ben has been providing psychological intervention within the drug and alcohol field and generalist counselling field. He has achieved senior positions in both areas within Public Health.

Ben has extensive experience in Cognitive Behavioural Therapy, Schema Therapy, Motivational Interviewing, Interpersonal Psychotherapy and Existential Therapy. He is experienced working with adults, children and couples, and has specialised in addictive disorders, domestic violence and working with children on behavioural issues.





Viviana is a registered psychologist who completed a Masters degree in Clinical Psychology in 2017 at the University of Melbourne. She has experience in public health, youth mental health, and health psychology. She works with adolescent and adult clients presenting with a wide range of psychological issues such as depression, anxiety, trauma, grief, adjustment, health and self-esteem issues.

She adopts a holistic approach to therapy, focusing on the social, psychological and biological factors known to affect mental health. Viviana primarily works with Cognitive Behavioural Therapy (CBT) and is influenced by Acceptance and Commitment Therapy (ACT), Mindfulness, Dialectical Behaviour Therapy (DBT), Psychodynamic Psychotherapy and Schema Therapy, tailoring interventions to client’s needs.




Paiche is a Registered Psychologist who completed a Bachelor of Psychology (Honours) at Western Sydney University in 2016.

Since 2016, Paiche has been working in Private Practice and provides evidence-based treatment utilising psychological frameworks such as Cognitive Behavioural Therapy (CBT), Acceptance and Commitment Therapy (ACT), Schema Therapy, Motivational Interviewing and Mindfulness, as well as adopting a practice that is tailored to suit individual client needs.

Paiche welcomes clients of all ages who may be experiencing difficulties such as adjustment, self-esteem, behavioural problems, anxiety, depression, bullying, trauma, domestic violence and grief. While Paiche welcomes all ages, she has a particular interest in working with adolescents and young adults.



Natalie Martinez


Natalie Martinez is a fully registered psychologist with over 10 years of clinical experience gained through NSW Health and in private practice settings. Natalie completed a Postgraduate Diploma in Psychology through the University of Western Sydney in 2008 and a Bachelor of Arts – Psychology through the University of Wollongong in 2006. Natalie has more recently completed a Diploma in Leadership and Management and enjoys mentoring and supervising other psychologists. Natalie is a member of the APS.

Natalie has experience working with children, adolescents and adults. Natalie’s passion is working collaboratively with clients utilising their strengths, in order to equip them with the necessary tools to meet life’s challenges at any stage. Natalie believes in early intervention but also enjoys working with clients who understand that it is never too late to make changes.

Natalie has extensive experience utilising CBT with children, adolescents and adults. Natalie also utilises ACT, Narrative Therapy, DBT and Brief Solution Focused Therapy. Natalie has skills and experience in working with both mild and more severe/chronic presentations. These presentations include Anxiety, Depression, OCD, Bipolar Disorder, Childhood Trauma and Child Behaviour concerns.


Brett Stathis


Brett enjoys the therapeutic process of helping with clients with a variety of issues including anxiety, depression, trauma and loss, adjustment to change, managing work and family stress, and living with mental illness. He takes time to listen to your story and work with you at your pace. No problem is too big or too small as Brett is experienced with both longer and shorter term evidence based therapies, including cognitive behaviour therapy, schema therapy, solution focussed therapy, acceptance and commitment therapy and dialectical behaviour therapy.

After two decades working as a psychologist in various settings including mental health services, child and family services, private and non-government settings, Brett is comfortable and confident helping children, families and adults achieve their goals. Brett's passion for his work is shown through his volunteer work overseas with Medecins Sans Frontieres (Doctors Without Borders).

Brett gained his professional qualifications at the University of Sydney, is fully registered, a member of the Australian Psychological Society and participates in ongoing professional development to keep up to date with the latest treatment approaches.


Harsha Kulasekaran


Harsha completed a Master of Clinical Psychology at Western Sydney University in 2019. She has acquired experience working with children, adolescents and adults in both public and private settings. Harsha primarily employs Cognitive Behavioural Therapy (CBT) and Acceptance Commitment Therapy (ACT), but also draws upon Narrative and Existential Therapy approaches. While she enjoys working with clients presenting with all psychological difficulties, her particular interest areas include anxiety, sexuality/gender, health, and stuttering. Harsha’s defining characteristic is that she adopts a compassionate and open-minded approach with every individual no matter their circumstance.